Cheapest return flights from Seoul to Singapore in September from $638

AirHint found the following cheapest return flights from Seoul (GMP) to Singapore (SIN) in September 2026 (see full year).

Return flights

14 Sep - 19 Sep Air China
30 Sep - 07 Oct Air China
17 Sep - 24 Sep Air China
17 Sep - 28 Sep Air China
20 Sep - 24 Sep Air China
19 Sep - 26 Sep Air China
24 Sep - 29 Sep Japan Airlines

Also check the deals for one-way flights from Seoul to Singapore in September.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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